400242000425 has 24 divisors (see below), whose sum is σ = 497569716000. Its totient is φ = 319375526400.

The previous prime is 400242000419. The next prime is 400242000427. The reversal of 400242000425 is 524000242004.

It is not a de Polignac number, because 400242000425 - 2²⁰ = 400240951849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400242000425.

It is not an unprimeable number, because it can be changed into a prime (400242000427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16324826 + ... + 16349324.

It is an arithmetic number, because the mean of its divisors is an integer number (20732071500).

Almost surely, 2^400242000425 is an apocalyptic number.

It is an amenable number.

400242000425 is a deficient number, since it is larger than the sum of its proper divisors (97327715575).

400242000425 is a wasteful number, since it uses less digits than its factorization.

400242000425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26153 (or 26148 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 400242000425 its reverse (524000242004), we get a palindrome (924242242429).

The spelling of 400242000425 in words is "four hundred billion, two hundred forty-two million, four hundred twenty-five", and thus it is an aban number.